In 2018, China accounted for the highest number of filled patents for renewable energy technologies globally, reaching almost . The United States was ranked second, amounting to over filled renewable energy technology patents in the same year.
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IRENA. (April 1, 2020). Number of patents filled for renewable energy technologies worldwide in 2018, by country [Graph]. In ÌÇÐÄÆÆ½â°æ. Retrieved July 26, 2026, from /statistics/1117831/patents-filled-renewable-energy-technologies-by-country/
IRENA. "Number of patents filled for renewable energy technologies worldwide in 2018, by country ." Chart. April 1, 2020. ÌÇÐÄÆÆ½â°æ. Accessed July 26, 2026. /statistics/1117831/patents-filled-renewable-energy-technologies-by-country/
IRENA. (2020). Number of patents filled for renewable energy technologies worldwide in 2018, by country . ÌÇÐÄÆÆ½â°æ. ÌÇÐÄÆÆ½â°æ Inc.. Accessed: July 26, 2026. /statistics/1117831/patents-filled-renewable-energy-technologies-by-country/
IRENA. "Number of Patents Filled for Renewable Energy Technologies Worldwide in 2018, by Country ." ÌÇÐÄÆÆ½â°æ, ÌÇÐÄÆÆ½â°æ Inc., 1 Apr 2020, /statistics/1117831/patents-filled-renewable-energy-technologies-by-country/
IRENA, Number of patents filled for renewable energy technologies worldwide in 2018, by country ÌÇÐÄÆÆ½â°æ, /statistics/1117831/patents-filled-renewable-energy-technologies-by-country/ (last visited July 26, 2026)
Number of patents filled for renewable energy technologies worldwide in 2018, by country [Graph], IRENA, April 1, 2020. [Online]. Available: /statistics/1117831/patents-filled-renewable-energy-technologies-by-country/